HydroBASINS lev08 watershed · #2080682180
Bassin de Ribeira de Odivelas
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 9 administrative regions : Alcácer do Sal, Alvito, Cuba, Ferreira do Alentejo, Grândola +4
Sub-basin area
740,5km²
Upstream area
740,7km²
Discharge
4,28m³/s
Mean elev.
169m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- AlvitoBeja · Portugal211.5 km²28.5% of basin
- PortelÉvora · Portugal171.0 km²23.1% of basin
- Ferreira do AlentejoBeja · Portugal115.5 km²15.6% of basin
- Alcácer do SalSetúbal · Portugal98.0 km²13.2% of basin
- CubaBeja · Portugal91.7 km²12.4% of basin
- Viana do AlentejoÉvora · Portugal25.2 km²3.4% of basin
- GrândolaSetúbal · Portugal11.4 km²1.5% of basin
- 9.7 km²1.3% of basin
1 moreFull L2 list
- Vidigueira7.0 km² · 0.9%
1 intersecting protected areas
Alvito/Cuba
IUCN Not ReportedSite of Community Importance (Habitats Directive)
7.60 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 608 distinct species · 48 457 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Ribeira de Odivelas : 33 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 4 types (connectance 9.6%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
16,5°C
Annual rain
575mm
Moisture idx (CMI)
-0,52
Runoff
187mm/an
PET
1 194mm
AET
486mm
Mean slope
1,9°
Water table
215cm
Forest
26%
Crops
56%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)